WO2022181297A1 - Dispositif de notification de distance et procédé de notification de distance - Google Patents

Dispositif de notification de distance et procédé de notification de distance Download PDF

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Publication number
WO2022181297A1
WO2022181297A1 PCT/JP2022/004564 JP2022004564W WO2022181297A1 WO 2022181297 A1 WO2022181297 A1 WO 2022181297A1 JP 2022004564 W JP2022004564 W JP 2022004564W WO 2022181297 A1 WO2022181297 A1 WO 2022181297A1
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WO
WIPO (PCT)
Prior art keywords
wireless communication
distance
user
communication device
surrounding users
Prior art date
Application number
PCT/JP2022/004564
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English (en)
Japanese (ja)
Inventor
正臣 深澤
Original Assignee
株式会社Ｊｖｃケンウッド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｊｖｃケンウッド filed Critical 株式会社Ｊｖｃケンウッド
Publication of WO2022181297A1 publication Critical patent/WO2022181297A1/fr
Priority to US18/364,496 priority Critical patent/US20230396962A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/005—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 with correlation of navigation data from several sources, e.g. map or contour matching
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
    • G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
    • G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
    • G01C21/183—Compensation of inertial measurements, e.g. for temperature effects
    • G01C21/185—Compensation of inertial measurements, e.g. for temperature effects for gravity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers
    • G01C21/3626—Details of the output of route guidance instructions
    • G01C21/3632—Guidance using simplified or iconic instructions, e.g. using arrows
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds

Definitions

  • the present disclosure relates to a distance notification device and a distance notification method.
  • a monitoring system is known that moves a monitoring area while maintaining a distance between a plurality of terminal devices (see Patent Document 1, for example).
  • the purpose of the present disclosure is to provide a distance notification device and distance notification method capable of suppressing the occurrence of secondary disasters when searching in teams.
  • a distance notification device acquires a first position information acquisition unit that acquires position information of a user, and position information of a plurality of surrounding users who are present around the user and belong to the same group as the user. a second location information acquisition unit; a distance calculation unit that calculates a distance between the user and each of the surrounding users based on the location information of the user and the location information of the surrounding users; , a distance determination unit that determines whether or not the distance between each of the surrounding users is equal to or greater than a predetermined distance; and coordinate information of a meeting point based on the location information of the users and the location information of the surrounding users.
  • a coordinate information calculation unit that calculates the distance between the user and the surrounding users, if the number of the surrounding users determined to be equal to or greater than a predetermined distance from the user is a predetermined number or more, the user a notification unit that notifies direction information toward the gathering point of the group to which the group belongs.
  • a distance notification method includes the steps of acquiring position information of a user; calculating a distance between the user and each of the surrounding users based on the position information of the user and the position information of the surrounding users; calculating coordinate information of a meeting point based on the position information of the user and the position information of the surrounding users; a step of notifying the user of direction information toward the gathering point of the group to which the user belongs when the number of the surrounding users determined to be at least a predetermined distance is greater than or equal to a predetermined number; include.
  • FIG. 1 is a diagram showing a configuration example of a radio communication system according to the first embodiment.
  • FIG. 2 is a block diagram showing a configuration example of the wireless communication device according to the first embodiment.
  • FIG. 3 is a flowchart illustrating an example of the processing flow of the wireless communication device according to the first embodiment.
  • FIG. 4 is a diagram for explaining a method of calculating a distance between a user and surrounding users according to the first embodiment.
  • FIG. 5 is a diagram for explaining a method of calculating the coordinates of the meeting point.
  • FIG. 6 is a diagram for explaining a method of displaying direction information of a meeting point.
  • 7 is a flowchart illustrating an example of the flow of processing of the wireless communication device according to the first embodiment;
  • FIG. 8 is a diagram for explaining processing of the wireless communication system according to the second embodiment.
  • FIG. 9 is a diagram for explaining processing of the wireless communication system according to the second embodiment.
  • FIG. 10 is a diagram for explaining processing of the wireless communication
  • FIG. 1 is a diagram showing a configuration example of a radio communication system according to the first embodiment.
  • the wireless communication system 1 includes a wireless communication device 10a, a wireless communication device 10b, a wireless communication device 10c, a wireless communication device 10d, and a wireless communication device 10e.
  • a user using the wireless communication device 10a is simply called a user, and a user using the wireless communication device 10b to the wireless communication device 10e is sometimes called a peripheral user.
  • a user using the wireless communication device 10e to the wireless communication device 10e is sometimes called a peripheral user.
  • they may be collectively referred to as the wireless communication device 10.
  • the wireless communication device 10 is not limited to portable wireless communication devices such as business wireless communication devices, smart phones, and tablet terminals.
  • the wireless communication device 10 may be, for example, a game machine.
  • processing is mainly performed by the wireless communication device 10a, but similar processing is performed by the wireless communication devices 10b to 10e.
  • the wireless communication device 10a acquires location information of the user (wireless communication device 10a) and location information of surrounding users (wireless communication devices 10b to 10e). Based on the location information of the user (wireless communication device 10a) and the location information of the surrounding users (wireless communication devices 10b to 10e), the wireless communication device 10a communicates with the user (wireless communication device 10a) and the surrounding users. (from the wireless communication device 10b to the wireless communication device 10e) is calculated. The wireless communication device 10a notifies the user when the distance between the user (wireless communication device 10a) and the surrounding users (from the wireless communication device 10b to the wireless communication device 10e) is greater than or equal to a predetermined distance. As a result, the present embodiment suppresses the occurrence of secondary disasters when searching in teams.
  • FIG. 2 is a block diagram showing a configuration example of the wireless communication device according to the first embodiment.
  • the wireless communication device 10 includes an input unit 20, a display unit 22, an audio output unit 24, a storage unit 26, a communication unit 28, and a GNSS (Global Navigation Satellite System) receiving unit 30. , and a control unit 32 .
  • an input unit 20 a display unit 22
  • an audio output unit 24 a storage unit 26
  • a communication unit 28 a communication unit 28
  • a GNSS (Global Navigation Satellite System) receiving unit 30 a control unit 32 .
  • GNSS Global Navigation Satellite System
  • the input unit 20 is an input device that receives various input operations to the wireless communication device.
  • the input unit 20 includes, for example, buttons, switches, levers, numeric keys, a touch panel, PTT (Push to Talk) buttons, and the like.
  • the display unit 22 displays various images.
  • the display unit 22 includes a display including, for example, a liquid crystal display (LCD) or an organic EL (Electro-Luminescence) display.
  • the display unit 22 may include a light emitting unit such as an LED (Light Emitting Diode), for example.
  • LED Light Emitting Diode
  • the input unit 20 and the display unit 22 may be configured integrally using a touch panel or the like.
  • the voice output unit 24 outputs various voices.
  • the voice output unit 24 outputs, for example, at least one of a voice and a notification sound for notifying the user that the distance from the other user is greater than or equal to a predetermined distance.
  • the audio output unit 24 is implemented by, for example, a speaker.
  • the storage unit 26 is a memory that stores various information.
  • the storage unit 26 stores information such as calculation contents of the control unit 32 and programs, for example.
  • the storage unit 26 includes, for example, at least one of a RAM (Random Access Memory), a main storage device such as a ROM (Read Only Memory), and an external storage device such as a HDD (Hard Disk Drive).
  • RAM Random Access Memory
  • main storage device such as a ROM (Read Only Memory)
  • HDD Hard Disk Drive
  • the communication unit 28 is a communication device that transmits and receives various information between the wireless communication device 10 and an external device.
  • the communication unit 28 performs transmission and reception of mutual position information between the wireless communication device 10 and another wireless communication device 10, for example.
  • the GNSS receiving unit 30 receives GNSS signals including information for specifying position information from GNSS satellites (not shown).
  • the GNSS receiver 30 outputs the received GNSS signal to the controller 32 .
  • the GNSS receiver 30 can be realized by, for example, a GNSS receiver circuit or a GNSS receiver.
  • the control unit 32 controls the operation of each unit of the wireless communication device 10 .
  • the control unit 32 is implemented by, for example, a CPU (Central Processing Unit), MPU (Micro Processing Unit) or the like executing a program stored in the storage unit 26 or the like using the RAM or the like as a work area.
  • the control unit 32 may be implemented by an integrated circuit such as ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate Array).
  • the control unit 32 may be realized by a combination of hardware and software.
  • the control unit 32 includes a first location information acquisition unit 40, a second location information acquisition unit 42, a distance calculation unit 44, a distance determination unit 46, a coordinate information calculation unit 48, a notification unit 50, and a display control unit. 52 and a communication control unit 54 .
  • the first location information acquisition unit 40 acquires the GNSS signal from the GNSS reception unit 30.
  • the first location information acquisition unit 40 calculates current location information of the wireless communication device 10 based on the GNSS signal.
  • the first location information acquisition unit 40 for example, calculates the current location of the wireless communication device 10 in terms of earth coordinates.
  • the second location information acquisition unit 42 acquires location information of other wireless communication devices 10 .
  • the second location information acquisition unit 42 acquires, for example, information indicating the earth coordinates of the current location of another wireless communication device 10 .
  • the distance calculator 44 calculates the distance between the wireless communication device 10 and another wireless communication device 10 .
  • the distance calculation unit 44 for example, based on the position information acquired by the first position information acquisition unit 40 and the position information acquired by the second position information acquisition unit 42, the wireless communication device 10 and other wireless communication devices Calculate the distance between 10.
  • the distance determination unit 46 determines whether or not the distance between the wireless communication device 10 and another wireless communication device 10 is equal to or greater than a predetermined distance.
  • the predetermined distance is the distance at which the user having the wireless communication device 10 and the surrounding users having other wireless communication devices 10 may have diverged.
  • the user may arbitrarily set the distance at which there is a possibility of deviation according to the location of the search. That is, the distance determination unit 46 determines whether or not the user has deviated from the surrounding users.
  • the coordinate information calculation unit 48 calculates the coordinates of the meeting point of the user and surrounding users. For example, when the distance determination unit 46 determines that the distance between the user and the surrounding users is greater than or equal to the predetermined distance, the coordinate information calculation unit 48 calculates, based on the position information of the user and the position information of the surrounding users, Calculate the coordinates of the meeting point.
  • the notification unit 50 performs notification by controlling the display unit 22.
  • the notification unit 50 controls the display unit 22 to display information indicating the meeting point on the display unit 22, for example, when the distance between the user and surrounding users is equal to or greater than a predetermined distance.
  • the information indicating the gathering point may be coordinate information of a predetermined gathering point, or may be coordinate information calculated by the coordinate information calculating section 48 .
  • the display control unit 52 controls the display unit 22 to display various information on the display unit 22 .
  • the communication control unit 54 controls the communication unit 28 to control communication between the wireless communication device 10 and external devices.
  • the communication control unit 54 controls communication between the wireless communication device 10 and another wireless communication device 10 by controlling the communication unit 28, for example.
  • FIG. 3 is a flowchart illustrating an example of the processing flow of the wireless communication device according to the first embodiment.
  • the processing shown in FIG. 3 is performed by each wireless communication device 10 when a plurality of users own the wireless communication devices 10 and form a team to search for a missing person or an object.
  • the control unit 32 acquires the user's location information (step S10). Specifically, the first location information acquisition unit 40 calculates the location information of the user by calculating the location information of the wireless communication device 10 based on the GNSS signal received by the GNSS reception unit 30 . Then, the process proceeds to step S12.
  • the control unit 32 acquires location information of surrounding users (step S12). Specifically, the second location information acquisition unit 42 acquires the location information of the surrounding users by acquiring the location information of the other wireless communication devices 10 via the communication unit 28 . The second location information acquisition unit 42 acquires location information of surrounding users, for example, at predetermined time intervals. The predetermined time interval is, for example, 10 seconds, but is not limited to this. Then, the process proceeds to step S14.
  • the control unit 32 calculates the distance between the user and surrounding users (step S14). Specifically, the distance calculation unit 44 calculates the distance between the user and the surrounding users based on the position information of the user acquired in step S10 and the position information of the surrounding users acquired in step S12. calculate.
  • FIG. 4 is a diagram for explaining a method of calculating a distance between a user and surrounding users according to the first embodiment.
  • the wireless communication system 1 includes a wireless communication device 10a, a wireless communication device 10b, a wireless communication device 10c, a wireless communication device 10d, and a wireless communication device 10e.
  • the distance calculation unit 44 of the wireless communication device 10a calculates the distance L1 between the wireless communication device 10a and the wireless communication device 10b based on the location information of the wireless communication device 10a and the location information of the wireless communication device 10b. do.
  • the distance calculation unit 44 of the wireless communication device 10a calculates the distance L2 between the wireless communication device 10a and the wireless communication device 10c based on the location information of the wireless communication device 10a and the location information of the wireless communication device 10c. do.
  • the distance calculation unit 44 of the wireless communication device 10a calculates the distance L3 between the wireless communication device 10a and the wireless communication device 10d based on the location information of the wireless communication device 10a and the location information of the wireless communication device 10d. do.
  • the distance calculation unit 44 of the wireless communication device 10a calculates the distance L4 between the wireless communication device 10a and the wireless communication device 10e based on the location information of the wireless communication device 10a and the location information of the wireless communication device 10e. do.
  • the wireless communication devices 10b to 10e also calculate the distances to each wireless communication device.
  • the distance calculation unit 44 of the wireless communication device 10b calculates the distance L1 between the wireless communication device 10a and the wireless communication device 10b based on the location information of the wireless communication device 10b and the location information of the wireless communication device 10a. do.
  • the distance calculation unit 44 of the wireless communication device 10b calculates the distance L5 between the wireless communication device 10b and the wireless communication device 10c based on the location information of the wireless communication device 10b and the location information of the wireless communication device 10c. do.
  • the distance calculation unit 44 of the wireless communication device 10b calculates a distance L6 between the wireless communication device 10b and the wireless communication device 10d based on the location information of the wireless communication device 10b and the location information of the wireless communication device 10d. do.
  • the distance calculation unit 44 of the wireless communication device 10b calculates a distance L7 between the wireless communication device 10b and the wireless communication device 10e based on the location information of the wireless communication device 10b and the location information of the wireless communication device 10e. do.
  • the distance calculation unit 44 of the wireless communication device 10c calculates the distance L2 between the wireless communication device 10a and the wireless communication device 10c based on the location information of the wireless communication device 10c and the location information of the wireless communication device 10a. do.
  • the distance calculation unit 44 of the wireless communication device 10c calculates the distance L5 between the wireless communication device 10b and the wireless communication device 10c based on the location information of the wireless communication device 10c and the location information of the wireless communication device 10b. do.
  • the distance calculation unit 44 of the wireless communication device 10c calculates the distance L8 between the wireless communication device 10c and the wireless communication device 10d based on the location information of the wireless communication device 10c and the location information of the wireless communication device 10d. do.
  • the distance calculation unit 44 of the wireless communication device 10c calculates a distance L9 between the wireless communication device 10c and the wireless communication device 10e based on the location information of the wireless communication device 10c and the location information of the wireless communication device 10e. do.
  • the distance calculation unit 44 of the wireless communication device 10d calculates the distance L3 between the wireless communication device 10a and the wireless communication device 10d based on the location information of the wireless communication device 10d and the location information of the wireless communication device 10a. do.
  • the distance calculation unit 44 of the wireless communication device 10d calculates a distance L6 between the wireless communication device 10b and the wireless communication device 10d based on the location information of the wireless communication device 10d and the location information of the wireless communication device 10b. do.
  • the distance calculation unit 44 of the wireless communication device 10d calculates a distance L8 between the wireless communication device 10c and the wireless communication device 10d based on the location information of the wireless communication device 10d and the location information of the wireless communication device 10c. do.
  • the distance calculation unit 44 of the wireless communication device 10d calculates the distance L10 between the wireless communication device 10d and the wireless communication device 10e based on the location information of the wireless communication device 10d and the location information of the wireless communication device 10e. do.
  • the distance calculation unit 44 of the wireless communication device 10e calculates the distance L4 between the wireless communication device 10a and the wireless communication device 10e based on the location information of the wireless communication device 10e and the location information of the wireless communication device 10a. do.
  • the distance calculation unit 44 of the wireless communication device 10e calculates a distance L7 between the wireless communication device 10b and the wireless communication device 10e based on the location information of the wireless communication device 10e and the location information of the wireless communication device 10b. do.
  • the distance calculation unit 44 of the wireless communication device 10e calculates a distance L9 between the wireless communication device 10c and the wireless communication device 10e based on the location information of the wireless communication device 10e and the location information of the wireless communication device 10c. do.
  • the distance calculation unit 44 of the wireless communication device 10e calculates the distance L10 between the wireless communication device 10d and the wireless communication device 10e based on the location information of the wireless communication device 10e and the location information of the wireless communication device 10d. do.
  • each wireless communication device 10 included in the wireless communication system 1 calculates the distance between the user and surrounding users by calculating the distance between each other wireless communication device 10 .
  • the processing performed by the wireless communication device 10a will be described below, but the processing performed by the wireless communication devices 10b to 10e is the same, so the description will be omitted.
  • the control unit 32 determines whether or not there are a predetermined number or more of surrounding users at a predetermined distance or more (step S16). Specifically, in the example shown in FIG. 4, the distance determination unit 46 of the wireless communication device 10a determines whether or not the number of distances equal to or greater than a predetermined distance among the distances L1 to L4 is equal to or greater than a predetermined number. .
  • the predetermined distance is, for example, 100 m, but is not limited to this and may be set arbitrarily.
  • the predetermined number may be one or a plurality of units. If it is determined that there are a predetermined number or more of users within the predetermined distance (step S16; Yes), the process proceeds to step S18. If it is not determined that there are a predetermined number or more of users within the predetermined distance (step S16; No), the process proceeds to step S26.
  • step S16 the control unit 32 transmits information indicating that the wireless communication device 10 is separated by a predetermined distance or more (step S18). Specifically, the communication control unit 54 of the wireless communication device 10a transmits, via the communication unit 28, information indicating that the wireless communication device 10b has separated from the wireless communication device 10e by a predetermined distance or more. Then, the process proceeds to step S20.
  • the control unit 32 notifies (step S20). Specifically, the notification unit 50 controls the audio output unit 24 to emit a warning sound, thereby notifying that there is a user who is at least a predetermined distance away.
  • the warning sound is, for example, a continuously output sound effect such as "beep, beep, beep", but is not limited to this. Then, the process proceeds to step S22.
  • the control unit 32 calculates the coordinates of the meeting point (step S22). Specifically, the coordinate information calculation unit 48 of the wireless communication device 10a calculates the coordinates of the meeting point based on the position information of the wireless communication devices 10a to 10e.
  • FIG. 5 is a diagram for explaining a method of calculating the coordinates of the meeting point.
  • the coordinate information calculation unit 48 calculates the coordinates C of the meeting point based on the position information of the wireless communication devices 10a to 10e.
  • Coordinates C are, for example, central coordinates from the wireless communication device 10a to the wireless communication device 10e.
  • the coordinates C which are the centers of gravity (average) of the longitude and latitude of all five points of the wireless communication devices 10a to 10e arranged on the two-dimensional plane, Ask for The coordinates C are not limited to the central coordinates of the wireless communication devices 10a to 10e, and may be the coordinates of the wireless communication device owned by the leader of the team among the wireless communication devices 10a to 10e.
  • the coordinates C may be the coordinates of a predetermined gathering point. That is, the gathering point may be arbitrarily determined according to the design.
  • the control unit 32 displays the direction information of the meeting point (step S24). Specifically, the notification unit 50 of the wireless communication device 10a controls the display unit 22 to display the direction information of the meeting point.
  • FIG. 6 is a diagram for explaining a method of displaying direction information of a meeting point.
  • the notification unit 50 of the wireless communication device 10a causes the display unit 22 of the wireless communication device 10a to display an arrow A1 as the direction information of the meeting point.
  • Arrow A1 is an arrow indicating the direction of coordinate C, which is the meeting point.
  • the user can move to the meeting point by following the arrow A1.
  • an arrow A2 is displayed on the display unit 22 of the wireless communication device 10b
  • an arrow A3 is displayed on the display unit 22 of the wireless communication device 10c
  • an arrow A3 is displayed on the display unit 22 of the wireless communication device 10d.
  • A4 is displayed
  • an arrow A5 is displayed on the display unit 22 of the wireless communication device 10e.
  • Arrows A2 to A5 are arrows respectively indicating the direction of the meeting point seen from the wireless communication device 10b to the wireless communication device 10e. That is, in the present embodiment, even if only one wireless communication device 10 is determined to be at or above a predetermined distance while a team is searching, the wireless communication devices 10 of all members of the team will be sent to the meeting point. Displays directional information.
  • step S26 determines whether or not the direction display of the gathering point is being displayed. If it is determined that the direction display of the meeting point is being displayed (step S26; Yes), the process proceeds to step S28. If it is not determined that the direction display of the meeting point is being displayed (step S26; No), the process proceeds to step S32.
  • step S26 the control unit 32 turns off the direction information of the meeting point (step S28). Specifically, the notification unit 50 of the wireless communication device 10a turns off the display unit 22 of the wireless communication device 10a to hide the direction information. Then, the process proceeds to step S30.
  • the control unit 32 transmits information indicating that the distance is less than the predetermined distance (step S30). Specifically, the communication control unit 54 of the wireless communication device 10a transmits information indicating that the distance is less than the predetermined distance from the wireless communication device 10b to the wireless communication device 10e via the communication unit 28 . Then, the process proceeds to step S32.
  • step S32 determines whether or not to end the process. Specifically, the control unit 32 determines to end the process when an operation to turn off the power or an operation to end the process is received. If it is determined to end the process (step S32; Yes), the process of FIG. 3 ends. If it is not determined to end the process (step S32; No), the process proceeds to step S10.
  • FIG. 7 is a flowchart illustrating an example of the flow of processing of the wireless communication device according to the first embodiment
  • the processing shown in FIG. 7 indicates that, when a plurality of users own the wireless communication devices 10 and form a team to search for a missing person or an object, the users are separated from other wireless communication devices by a predetermined distance or more. This is notification processing when information is received. However, the processing of FIG. 7 is not always necessary, and if the processing of FIG. 7 is not performed, the notification and the direction of the gathering point are displayed only to the wireless communication devices 10 that have become separated from the team by the processing of FIG. 3 by a predetermined distance or more. be done.
  • the control unit 32 determines whether or not it has received information indicating that it is away from another wireless communication device 10 by a predetermined distance or more (step S40). Specifically, the communication control unit 54 of the wireless communication device 10a determines whether or not it has received information indicating that the wireless communication device 10b is separated from at least one of the wireless communication devices 10e by a predetermined distance or more. If it is determined that the information indicating that the wireless communication device 10 is away from the other wireless communication device 10 by a predetermined distance or more (step S40; Yes), the process proceeds to step S42. If it is not determined that the information indicating that the wireless communication device 10 is away from the other wireless communication device 10 by a predetermined distance or longer (step S40; No), the process proceeds to step S48.
  • step S42 to step S46 is the same as the processing from step S20 to step S24 shown in FIG. 3, so the description is omitted.
  • the control unit 32 determines whether or not information indicating that the distance is less than the predetermined distance has been received from another wireless communication device 10 (step S48). Specifically, the communication control unit 54 of the wireless communication device 10a determines that the wireless communication device among the wireless communication devices 10e from the wireless communication device 10b has received information indicating that they are separated by a predetermined distance or more in step S40. , it is determined whether or not information indicating that the distance is less than the predetermined distance has been received. If it is determined that information indicating that the distance is less than the predetermined distance has been received from another wireless communication device 10 (step S48; Yes), the process proceeds to step S50. If it is not determined that the information indicating that the distance is less than the predetermined distance has been received from the other wireless communication device 10 (step S48; No), the process proceeds to step S52.
  • steps S50 and S52 is the same as the processing of steps S30 and S32 shown in FIG. 3, so description thereof will be omitted.
  • direction information indicating the direction of the gathering place display. Accordingly, in the first embodiment, the members of the team can move to the meeting place, thereby suppressing the occurrence of secondary disasters such as missing members.
  • FIG. 8 to 10 are diagrams for explaining the processing of the wireless communication system according to the second embodiment.
  • a wireless communication system 1A includes a wireless communication device 10a, a wireless communication device 10b, a wireless communication device 10c, and a wireless communication device 10d. Since the configuration of the wireless communication device 10 according to the second embodiment is the same as the configuration of the wireless communication device 10 shown in FIG. 2, the description thereof will be omitted.
  • the wireless communication device 10a and the wireless communication device 10b are set as reference terminals.
  • the distance between the wireless communication devices in the formation is changed according to the distance between the wireless communication devices 10a and 10b.
  • Figure 8 shows the normal formation.
  • the formation is, for example, a form in which the wireless communication devices 10a to 10d are arranged near the vertices of the substantially rectangular region R11.
  • the distance between the wireless communication device 10a and the wireless communication device 10b is assumed to be the distance L11.
  • the wireless communication device 10c and the wireless communication device 10d are controlled so as not to exceed the distance L11.
  • the wireless communication device 10c and the wireless communication device 10d emit a warning sound, The user of device 10d is urged to move closer.
  • the distance between the wireless communication device 10a and the wireless communication device 10c and the distance between the wireless communication device 10b and the wireless communication device 10d should be such that the user of each wireless communication device can visually recognize the other party. preferable.
  • Fig. 9 shows the formation when searching for a place with a good view.
  • the distance between the wireless communication device 10a and the wireless communication device 10b is changed from the distance L11 to the distance L12 in a place with a good view.
  • Distance L12 is longer than distance L11 shown in FIG.
  • the distance L12 may be changed according to the degree of visibility.
  • the radio communication devices 10a to 10d are arranged near the apexes of a substantially square region R12 having a larger area than the region R11 in a place with a good view.
  • the wireless communication device 10c and the wireless communication device 10d when the distance between the wireless communication device 10c and the wireless communication device 10d exceeds the distance L12, the wireless communication device 10c and the wireless communication device 10d emit an alarm sound, and the wireless communication device 10c and the wireless communication device 10d The user of the communication device 10d is urged to reduce the distance.
  • the distance between the wireless communication device 10a and the wireless communication device 10c and the distance between the wireless communication device 10b and the wireless communication device 10d may be the same as in the example shown in FIG. may be longer than
  • Fig. 10 shows the formation for searching in places with poor visibility.
  • the distance between the wireless communication device 10a and the wireless communication device 10b is changed from the distance L11 to the distance L13 in a place with poor visibility.
  • the distance L13 is longer than the distance L11 shown in FIG.
  • the distance L12 may change according to the degree of visibility.
  • the wireless communication devices 10a to 10d are arranged near the vertices of a substantially rectangular region R13 having a smaller area than the region R11.
  • the wireless communication device 10c and the wireless communication device 10d when the distance between the wireless communication device 10c and the wireless communication device 10d exceeds the distance L13, the wireless communication device 10c and the wireless communication device 10d emit a warning sound, and the wireless communication device 10c and the wireless communication device 10d The user of the communication device 10d is urged to reduce the distance.
  • the distance between the wireless communication device 10a and the wireless communication device 10c and the distance between the wireless communication device 10b and the wireless communication device 10d may be the same as in the example shown in FIG. may be longer than
  • the second embodiment when a team forms a formation and performs a search, by setting two reference terminals, it is possible to determine whether or not the team members can be kept at an appropriate distance. As a result, in the second embodiment, it is possible to suppress the occurrence of a secondary disaster such as a team member going missing when searching in formation.
  • the present disclosure is not limited by the contents of these embodiments.
  • the components described above include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those within the so-called equivalent range.
  • the components described above can be combined as appropriate. For example, it is possible to change the setting of the predetermined distance in the first embodiment at any time in conjunction with the distance between the reference terminals in the second embodiment.
  • various omissions, replacements, or modifications of components can be made without departing from the gist of the above-described embodiments.
  • the distance notification device and distance notification method of the present disclosure can be applied to portable wireless communication devices, for example.
  • wireless communication system 10 wireless communication device 20 input unit 22 display unit 24 audio output unit 26 storage unit 28 communication unit 30 GNSS reception unit 32 control unit 40 first location information acquisition unit 42 second location information acquisition unit 44 distance calculation unit 46 Distance determination unit 48 Coordinate information calculation unit 50 Notification unit 52 Display control unit 54 Communication control unit

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un dispositif de notification de distance comprenant : une première unité d'acquisition d'informations de position (40) qui acquiert des informations de position concernant un utilisateur ; une seconde unité d'acquisition d'informations de position (42) qui acquiert des informations de position concernant une pluralité d'utilisateurs environnants qui sont présents dans l'environnement de l'utilisateur et qui appartiennent au même groupe que l'utilisateur ; une unité de calcul de distance (44) qui, sur la base des informations de position concernant l'utilisateur et des informations de position concernant les utilisateurs environnants, calcule les distances entre l'utilisateur et chacun des utilisateurs environnants ; une unité d'évaluation de distance (46) qui évalue si les distances entre l'utilisateur et chacun des utilisateurs environnants sont égales ou supérieures à une distance prescrite ; une unité de calcul d'informations de coordonnées (48) qui, sur la base des informations de position concernant l'utilisateur et des informations de position concernant les utilisateurs environnants, calcule des informations de coordonnées relatives à un site de rassemblement ; et une unité de notification (50) qui notifie à l'utilisateur des informations de direction pour une direction vers le site de rassemblement du groupe auquel l'utilisateur appartient lorsque le nombre d'utilisateurs environnants pour lesquels la distance à l'utilisateur est évaluée comme étant égale ou supérieure à la distance prescrite, parmi la pluralité d'utilisateurs environnants, est supérieur ou égal à un nombre prescrit.
PCT/JP2022/004564 2021-02-26 2022-02-04 Dispositif de notification de distance et procédé de notification de distance WO2022181297A1 (fr)

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JP2021-030749 2021-02-26
JP2021030749A JP2022131682A (ja) 2021-02-26 2021-02-26 距離通知装置、および距離通知方法

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001108460A (ja) * 1999-10-05 2001-04-20 Alpine Electronics Inc ナビゲーション装置のツーリングサポート方法
JP2002333338A (ja) * 2001-05-10 2002-11-22 Mazda Motor Corp 情報処理装置
US20080146205A1 (en) * 2006-12-14 2008-06-19 Bellsouth Intellectual Property Corp. Management of locations of group members via mobile communications devices
JP2008305043A (ja) * 2007-06-06 2008-12-18 Hiroshi Nohara 距離位置確認システム
WO2016006040A1 (fr) * 2014-07-08 2016-01-14 三菱電機株式会社 Système d'assistance de rendez-vous, programme d'assistance de rendez-vous et procédé d'assistance de rendez-vous

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001108460A (ja) * 1999-10-05 2001-04-20 Alpine Electronics Inc ナビゲーション装置のツーリングサポート方法
JP2002333338A (ja) * 2001-05-10 2002-11-22 Mazda Motor Corp 情報処理装置
US20080146205A1 (en) * 2006-12-14 2008-06-19 Bellsouth Intellectual Property Corp. Management of locations of group members via mobile communications devices
JP2008305043A (ja) * 2007-06-06 2008-12-18 Hiroshi Nohara 距離位置確認システム
WO2016006040A1 (fr) * 2014-07-08 2016-01-14 三菱電機株式会社 Système d'assistance de rendez-vous, programme d'assistance de rendez-vous et procédé d'assistance de rendez-vous

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US20230396962A1 (en) 2023-12-07
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